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3101 Laguna St

Cow Hollow, SF 94123 0507040 14 units · 3 fl · 1964

This building has far more open problems than almost any other in the neighborhood. A handful of unresolved issues. Worth a careful walk-through and pointed questions.

NOVs (7y) vs. neighborhood
Compared to a typical building in Cow Hollow
Above average
avg 0.7
1
FewerMore

This building has 1 novs (7y), above the Cow Hollow average of 0.7.

Rent & eviction protection

Is 3101 Laguna St rent-controlled?

San Francisco's Rent Ordinance caps rent increases and provides eviction protection for most residential units built before 1979 with 2+ units. Here's how this building scores.

Built before 1979
Built 1964
2 or more units
14 units
Property type
Multi-Family Residential
Zoning
RH2
Likely rent-controlled. Building age and unit count suggest this property falls under San Francisco's Rent Ordinance.

Based on SF Assessor records. Not legal advice — confirm with the SF Rent Board.

Building characteristics
Units14
Floors3
Year built1964
Total area
Property typeMulti-Family Residential
Tax statusNone
Blocklot0507040
Ownership

Registered owner per SF Assessor-Recorder (secured roll).

Owner name
Ferrando Louise Rev Tr 1999
Mailing address
Louise Ferrando 3140 Lyon St San Francisco CA 94123
Last sale
000000

Landlord portfolio

Other SF properties this owner holds, with risk grades for each.

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Augrented Insights
Initial analysis

The 14-unit, 3-story apartment building at 3101 Laguna Street in Cow Hollow was built in 1964 and is currently under the ownership of Ferrando Louise Rev Tr 1999. The property has undergone significant recent renovations, particularly in 2023-2024, with multiple units receiving substantial updates including kitchen conversions, bathroom rehabilitations, and washer/dryer installations. Specific units renovated include 101, 104, 205, and 303, with work continuing in unit 204 as of November 2024. The building has addressed several critical infrastructure elements, completing a mandatory soft-story retrofit in 2017 and recently upgrading its fire alarm system in late 2023 to comply with current fire code requirements. However, the building has experienced persistent issues with moisture and mold, as evidenced by multiple tenant complaints in 2020 and 2017, particularly in unit 305. There have also been recurring fire alarm system concerns, with violations noted in 2020 and 2022, though these were subsequently corrected.

The property has a documented history of plumbing and maintenance challenges, including a significant flooding incident in 2021 and complaints about old windows and heating systems in 2020. Infrastructure improvements have included a complete electrical service replacement in early 2024 and various plumbing upgrades. The building experienced earlier issues with elevator functionality (documented in 2001) and historical roof leakage problems noted in 1998, though these appear to have been addressed based on subsequent maintenance records. Recent 311 calls indicate ongoing concerns with sewage systems, including multiple reports of backups and odors in 2024, which may suggest ongoing infrastructure challenges. While the property has had various violations and complaints over the years, the majority of recent renovation work appears focused on improving unit amenities and addressing safety requirements, particularly concerning fire safety systems.

AI-generated · may contain errors · check the source data tables below

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Risk rating

How 3101 Laguna St's risk score is calculated

We trained a model on 7 years of SF DBI inspection data — notice of violation filings, complaint history, and owner track records. It estimates the probability that DBI inspectors will issue a Notice of Violation at this address in the next 12 months. Lower % = safer.

What the score means for you

Grade A–B — Low risk

DBI rarely finds violations here. Strong maintenance history and a clean complaint record.

Grade C — Moderate risk

Some past violations or complaints on record. Worth asking the landlord about any open issues before signing.

Grade D–F — High risk

Elevated violation and complaint history. DBI has found issues here before and is statistically likely to again.

Neighborhood percentile
5th percentile

Out of 861 buildings in this neighborhood, 818 are predicted to be safer.

RiskiestSafest
Predicted 12-month outcome
37%
No DBI
violation
63%
DBI violation
likely
Model explanation

What's driving this score

The three data points that most influenced this building's risk rating — ranked by the weight the model placed on each one.

Number of units

The number of units affects how the model reads complaint and violation totals — more units means more potential sources.

DBI tenant complaints (past 7 years)

Formal complaints tenants filed with DBI about this building over 7 years.

Notices of Violation, owner's portfolio

DBI NOVs across all buildings this owner is registered on — a signal of systemic maintenance issues across the portfolio.

12-Month severity forecast
No violation 45.0%
Moderate concern 46.4%
Severe concern 8.6%
Estimated probability of receiving a DBI Notice of Violation in the next 12 months at each severity level. Model: full_hgb_balanced.
Apartment reviews

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The story over time

3101 Laguna St event timeline

Violations, complaints, fire incidents, permits, and buyouts — most recent records in order.

2026
311 Request Jun 16
Sidewalk defect
collapsed sidewalk
311 RequestMay 24
Sidewalk defect

See all 29 events

Full history back to 2019 — violations, complaints, permits, buyouts, and fire incidents.

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Every record we have

Full data for 3101 Laguna St apartments

13 SF public datasets for this parcel — permits, violations, complaints, fire records, 311 calls, planning records, and buyouts.

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Cancel anytime · Data sourced from SF Open Data, DBI, SFFD, SF Rent Board & Planning

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